Inclusive charged and neutral particle multiplicity distributions in ${\chi }_{cJ}$ and $J/\psi$ decays

BESIII collaboration, M. Ablikim, M. N. Achasov +474

Using a sample of 106 million $\psi (3686)$ decays, $\psi (3686)\to \gamma {\chi }_{cJ}(J=0,1,2)$ and $\psi (3686)\to \gamma {\chi }_{cJ},{\chi }_{cJ}\to \gamma J/\psi$ $(J=1,2)$ events are utilized to study inclusive $…